Add EC key support (closes #1080)

Author: svenstaro

src/config.rs

@@ -199,7 +199,9 @@ impl MiniserveConfig {
                     .context("Reading private key file")?
                     .into_iter()
                     .find_map(|item| match item {
-                        pemfile::Item::RSAKey(key) | pemfile::Item::PKCS8Key(key) => Some(key),
+                        pemfile::Item::RSAKey(key)
+                        | pemfile::Item::PKCS8Key(key)
+                        | pemfile::Item::ECKey(key) => Some(key),
                         _ => None,
                     })
                     .ok_or_else(|| anyhow!("No supported private key in file"))?;

tests/data/cert_ec.pem

@@ -0,0 +1,12 @@
+-----BEGIN CERTIFICATE-----
+MIIBujCCAUCgAwIBAgIUd5MqZqnOPFxMKaYipL6S6B3D3cswCgYIKoZIzj0EAwIw
+FDESMBAGA1UEAwwJbG9jYWxob3N0MB4XDTIzMDQxNjEzNDUxNVoXDTMzMDQxMzEz
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+KjraTX2m52X4W8KLhMU=
+-----END CERTIFICATE-----

tests/data/cert_rsa.pem

@@ -0,0 +1,29 @@
+-----BEGIN CERTIFICATE-----
+MIIFCTCCAvGgAwIBAgIUTUIU8j6S7RXbFFhW/yFftSQvUCYwDQYJKoZIhvcNAQEL
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+-----END CERTIFICATE-----

tests/data/generate_tls_certs.sh

@@ -1,3 +1,4 @@
 #!/usr/bin/env bash
-openssl req -subj '/CN=localhost' -x509 -newkey rsa:4096 -keyout key_pkcs8.pem -out cert.pem -nodes -days 3650
+openssl req -subj '/CN=localhost' -x509 -newkey rsa:4096 -keyout key_pkcs8.pem -out cert_rsa.pem -nodes -days 3650
 openssl rsa -in key_pkcs8.pem -out key_pkcs1.pem
+openssl req -subj '/CN=localhost' -x509 -nodes -newkey ec -pkeyopt ec_paramgen_curve:secp384r1 -keyout key_ec.pem -out cert_ec.pem -days 3650

tests/data/key_ec.pem

@@ -0,0 +1,6 @@
+-----BEGIN PRIVATE KEY-----
+MIG2AgEAMBAGByqGSM49AgEGBSuBBAAiBIGeMIGbAgEBBDBZiwh8yRBpDgAx+Oa4
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+0epZ9KkFisUGWXbqrytG9LBJOpFC/lh2Csj/ICBlv4JeaPEBlZ8agew=
+-----END PRIVATE KEY-----

tests/data/key_pkcs1.pem

@@ -1,51 +1,52 @@
------BEGIN RSA PRIVATE KEY-----
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------END RSA PRIVATE KEY-----
+-----BEGIN PRIVATE KEY-----
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+-----END PRIVATE KEY-----

tests/data/key_pkcs8.pem

@@ -1,52 +1,52 @@
 -----BEGIN PRIVATE KEY-----
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 -----END PRIVATE KEY-----

tests/tls.rs

@@ -10,13 +10,17 @@ use select::{document::Document, node::Node};
 /// Can start the server with TLS and receive encrypted responses.
 #[rstest]
 #[case(server(&[
-        "--tls-cert", "tests/data/cert.pem",
+        "--tls-cert", "tests/data/cert_rsa.pem",
         "--tls-key", "tests/data/key_pkcs8.pem",
 ]))]
 #[case(server(&[
-        "--tls-cert", "tests/data/cert.pem",
+        "--tls-cert", "tests/data/cert_rsa.pem",
         "--tls-key", "tests/data/key_pkcs1.pem",
 ]))]
+#[case(server(&[
+        "--tls-cert", "tests/data/cert_ec.pem",
+        "--tls-key", "tests/data/key_ec.pem",
+]))]
 fn tls_works(#[case] server: TestServer) -> Result<(), Error> {
     let client = ClientBuilder::new()
         .danger_accept_invalid_certs(true)